#ifndef BITREE_H__
#define BITREE_H__

typedef char Datatype;

typedef struct tree_st
{
	Datatype data;
	struct tree_st *lchild;
	struct tree_st *rchild;
}tree_st;


void bitree_create(tree_st **,Datatype *);

void bitree_insert(tree_st **,tree_st *);

void bitree_prdisplay(tree_st *);

void bitree_middisplay(tree_st *);

void bitree_postdisplay(tree_st *);

tree_st *bitree_delete(tree_st *,Datatype *);

#endif
